Flat passband etched groove saw filter

Details Flat passband etched groove saw filter Flat passband etched groove saw filter

1985-09-03

1986-07-15

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Electromechanical filter

310313B, 333193, H03H 964, H03H 9145

Patent

active

046009051

ABSTRACT:
An acoustic surface wave device is configured as a bandpass filter. The device employs two interdigital transducer pairs for input and output. Each transducer pair has a slant finger geometry. The fingers are electrodeposited into grooves etched into the substrate. The grooves are deeper at the high frequency side of the substrate. The grooves enhance the electromechanical coupling of high frequency components and thus provide a flatter amplitude response curve.

REFERENCES:
patent: 4237433 (1980-12-01), Tanski
patent: 4388146 (1983-01-01), Ballato
patent: 4389275 (1983-06-01), Ballato
patent: 4999440 (1985-02-01), Grudkowski
Naraine et al--"Wide Band Linear Phase Saw Filters Using Apodized Slanted nger Transducers", Proc. IEEE Ultrasonics Symposium, Oct. 1983; pp. 113-116.
Tanski--"Developments in Resonators on Quartz", 1977 Ultrasonics Symposium Proceedings, Phoenix, Az., U.S.A., (26-28 Oct. 1977) pp. 900-904, 904a.

Affiliated with

Also associated with

Rating

Flat passband etched groove saw filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flat passband etched groove saw filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flat passband etched groove saw filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1743115